Dermatomyositis

Dermatomyositis is a rare autoimmune disorder in which the body's immune system mistakenly attacks healthy cells and tissue, causing inflammation of the muscles and the skin. The disease can cause muscle weakness and a distinctive rash on the eyelids, knuckles, elbows, chest and back. Dermatomyositis has no known cause and it is usually diagnosed through a combination of medical tests. Treatment involves corticosteroids and other immunosuppressants to reduce inflammation, medications to prevent flare-ups, physical and occupational therapy and sunscreen protection. Good prognosis depends on the timely diagnosis and early initiation of treatment.